<div class="col-md-12" style="">
   <div class="col-md-4" style=" width: 3%;height: 10%;margin-left: 97.5%">
      <a href="{:U('Home/Login/loginout')}"><img src="/zwtx/public/images/exit.png" width="50" height="50" /></a>
   </div>
</div>